%0 Journal Article
%T Characterization of the first cultured representative of a Bacteroidetes clade specialized on the scavenging of cyanobacteria
%+ Institut méditerranéen d'océanologie (MIO)
%+ Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH / Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures (DSMZ)
%+ Leibniz-Institut Deutsche Sammlung von Mikroorganismen und Zelllkulturen GmBH - DSMZ (GERMANY)
%A Ben Hania, Wajdi
%A Bartoli, Manon
%A Bunk, Boyke
%A Sproer, Cathrin
%A Klenk, Hans-Peter
%A Fardeau, Marie-Laure
%A Spring, Stefan
%< avec comité de lecture
%@ 1462-2912
%J Environmental Microbiology
%I Society for Applied Microbiology and Wiley-Blackwell
%V 19
%N 3
%P 1134 - 1148
%8 2017-03
%D 2017
%R 10.1111/1462-2920.13639
%Z Life Sciences [q-bio]/Ecology, environmentJournal articles
%X The anaerobic, mesophilic and moderately halophilic strain L21-Spi-D4 T was recently isolated from the suboxic zone of a hypersaline cyanobacterial mat using protein-rich extracts of Arthrospira (formerly Spirulina) platensis as substrate. Phylogenetic analyses based on 16S rRNA genes indicated an affiliation of the novel strain with the Bacteroidetes clade MgMjR-022, which is widely distributed and abundant in hypersaline microbial mats and heretofore comprised only sequences of uncultured bacteria. Analyses of the complete genome sequence of strain L21-Spi-D4 T revealed a possible specialization on the degradation of cyanobacterial biomass. Besides genes for enzymes degrading specific cyanobacterial proteins a conspicuous transport complex for the polypeptide cyanophycin could be identified that is homologous to typical polysaccharide utilization loci of Bacteroidetes. A distinct and reproducible co-occurrence pattern of environmental 16S rRNA gene sequences of the MgMjR-022 clade and cyanobacte-ria in the suboxic zone of hypersaline mats points to a specific dependence of members of this clade on decaying cyanobacteria. Based on a comparative analysis of phenotypic, genomic and ecological characteristics we propose to establish the novel taxa Salinivirga cyanobacteriivorans gen. nov., sp. nov., represented by the type strain L21-Spi-D4 T , and Sali-nivirgaceae fam. nov., comprising sequences of the MgMjR-022 clade.
%G English
%2 https://amu.hal.science/hal-01621708/document
%2 https://amu.hal.science/hal-01621708/file/1462-2920.13639.pdf
%L hal-01621708
%U https://amu.hal.science/hal-01621708
%~ IRD
%~ INSU
%~ UNIV-TLN
%~ CNRS
%~ UNIV-AMU
%~ MIO
%~ OSU-INSTITUT-PYTHEAS
%~ GIP-BE
%~ MIO-MEB